TE Connectivity's DEUTSCH HD30 connectors are constructed from a rugged aluminum shell developed to meet the needs of the heavy-duty truck, bus, and off-highway industries. These metal connectors offer multiple pin configurations that accept DEUTSCH contact sizes 4 through 20. DEUTSCH HD30 connectors are circular shaped and feature quick connect-disconnect bayonet couplings, silicone seals, and a rear insertion/rear removal contact system. The HD30 connectors also include adapter and cable clamp modifications that support the wires while reducing strain on the connectors. DEUTSCH HD30 connectors are made for use in truck, bus, off-highway, construction, agriculture, mining, emergency vehicles, forestry, recreational, and motorcycle applications.